the first technology of its kind... mom and dad, i have great news. is now providing answers families need. siemens. answers. >>> only half a block away from the blast yesterday. he experienced yesterday just having run the marathon. was this your first boston marathon? >> actually i did not run marathon. i was taking photos of the marathon. i was shooting the marathon for -- >> sorry. >> shooting some runners. >> i was about, sorry, continue? >> tell me what you saw. >> i was about half a block away when it happened. and i was just entering a rest rauth when it happened. and the first bomb had gone off and i didn't even know what had happened. what it was. what was going on. but everyone around mere, including myself got extremely still. and i could see outside. the whole restaurant had windows, and everyone outside had stopped mofgs, turned around, was looking in any direction to see what it was. until the second bomb went off. when the second one went off, at that point still people didn't know what was happening, whether it was a bomb or what it w